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This process of manufacturing barrels has been used
for European small arms for generations, and it is gaining popularity
in the United States because of the increased barrel life and
outstanding accuracy of a hammer forged barrel. The BCM BFH™ series of
barrels are made right here in the USA! (Just like all the BCM
products.)

M4 Feed Ramp Barrel Extension

In developing the USGI M4 carbine as one of the primary weapons for today’s infantry, some modifications were performed to the original M16 platform to enhance the reliability of the shorter barreled carbines. With the shorter carbine gas system and the increased gas port pressure, the carbine cycled faster, and at times the cycle rate could be faster than the magazine would feed ammunition. One of the modifications done to increase reliable feeding included enhancing the angle and the length of the feed ramps. This USGI modification was done to both the barrel extension and the upper receiver, creating a longer and steeper feed ramp. These Mil-Spec M4 feed ramps are part of the original CNC manufacturing process. As a result, the factory machined M4 feed ramps on the receiver are hard coat anodized which adds significant strength to the aluminum. This feature is offered on all BCM barrels.

USGI 1/7 Twist Rate

The USGI 1/7 twist rate of all of the BCM barrels is the preferred twist rate by most professional infantryman. This twist rate has proven very versatile and can effectively run the new heavier 5.56 ammo that is hugely popular with military and private security personal for its’ superior ballistics.

Mil-Spec Barrel Steel (Mil-B-11595E)

BCM barrel steel is Mil-Spec per MIL-B-11595E. This grade (CMV) of steel is a Mil-Spec steel used in the USGI M16 family of rifles; it is stronger and will last longer than the typical barrels offered in the commercial market. The Mil-Spec grade steel gets its’ additional strength and rigidity from an increase in carbon and/or vanadium in the alloy. This will offer increased barrel life and performance through use in all types of extreme environments and temperatures.

Chrome Bore and Chamber

One of the first modifications that were made to the original M16 in the mid 1960’s was the addition of the chrome lined bore and chamber. It is now a world wide standard in the industry for a battle rifle. The chrome bore and chamber is harder than the barrel steel and on the USGI M16/M4 rifles will aid in chambering, extraction, and reliability. It increases velocity, and also resist against fouling and corrosion from extended use in the field. This gives the end user a longer barrel life with less required time in maintenance and cleaning.

Manganese Phosphate Barrel Finish

Barrels are parkerized with the manganese phosphate finish (Mil-Spec A-A-59267). Military specifications also state that the entire barrel surface is phosphate finished to create a porous surface to absorb oil as to resist against corrosion from the elements. BCM barrels are phosphated before installation of front sights. This is a much more extensive assembly operation, but insures that the entire barrel is finished and protected . . .even under the front sight base.

5.56 NATO Chambers

The USGI 5.56 NATO chamber is the best choice for effective deployment, reliability, and compatibility, of higher chamber pressures of military ammo.

HPT / MP Inspected Barrels

Military specifications require that barrels undergo a HPT (High-Pressure Test) load as a part of quality assurance procedures. Commonly referred to as a proof load, the M197 HPT is rated for 70,000 psi. BCM barrels are proof loaded and then MPI (Magnetic Particle Inspected) to detect any possible flaws in the barrels surface. The barrels are MP inspected with both circular and longitudinal magnetic fields per ASTME1444-01 (current Mil-Spec) to assure a high quality finished product. All BCM barrels are marked HP MP as our proof load marking.

The first time I took out the gun I put this barrel in I was shooting sub-MOA groups. Off sandbags, I had several three shot groups with all three rounds touching (at 50 yds). As expected, when shooting offhand, the rifle handles better than my 16" M4 contour barrel; lighter and easier to swing from side to side. Very satisfied.

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1 of 1 people found the following review helpful:

Excellent seller

December 5, 2016

Reviewer:
JB from MI

Shipped day of order. Received next day, before cc payment was even posted. Amazing. Barrel not yet installed, but seems to be perfect for application.

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1 of 1 people found the following review helpful:

ELW 14.5" BFH barrel

September 22, 2016

Reviewer:
Ulrich Smith from Las Vegas, NV United States

Wow! Couldn't be more pleased with the quality of this barrel. Exactly what I wanted for my wife's first AR build. Regardless of price, this has to be the best barrel out there and BCM is simply fantastic to deal with.

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1 of 1 people found the following review helpful:

Awesome!

September 22, 2016

Reviewer:
Chad Fujishige from Las Vegas , NV United States

Just finished putting it together, replacing a LW for this bfh enhanced lightweight. Not that anything was wrong with the lightweight, I just have that disease of wanting the best. Have not shot it yet but I have no doubt it will perform perfectly as does every BCM part I have experienced. I tell you what the rifle feels super light up front, feels awesome swinging it while dry fire practicing. To be totally honest. I'm not comparing side by side as I sold my lightweight barrel but I believe I can feel the difference. Weight feels like it's more rearward and the front feels feather light! Yes it could be my imagination but it definitely feels so. Can't wait to shoot it. Even if it performed equally in accuracy I'd be happy as even the lightweight barrel was more accurate that I am.... slightly more than moa but my eyesight is bad so I am not as accurate as the barrel is.

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0 of 0 people found the following review helpful:

Awesome Barrel

September 22, 2016

Reviewer:
William Mrdeza from Mt. Pleasant, MI United States

Purchased this to upgrade my standard EWL 14.5" barrel on a BCM upper build. This is a great barrel and shoots well. Had the BCM Mod 1 Comp pinned and welded to make it legal and have enjoyed shooting my "new" rig. The upside is that now I have a spare 14.5" EWL barrel with a low round count should I need it in the future. As to be expected, BCM has another bomb proof upgrade in their line up. Highly recommended.